JNTUK R20 2-2 Dynamics of Machinery Material/Notes PDF Download

Students those who are studying JNTUK R20 Mechanical Branch, Can Download Unit wise R20 2-2 Dynamics of Machinery (DOM) Material/Notes PDFs below.

JNTUK R20 2-2 Dynamics of Machinery Material/Notes PDF Download

OBJECTIVES:

• To analyze the forces in clutches, brakes and dynamometers involving friction.
• understand the effect gyroscopic couple in motor cycles, aeroplanes and ships.
• To understand the static and dynamic force analysis of four bar and slider crank mechanisms.
• To study the turning moment diagrams of reciprocating engines and to learn design procedure of a flywheel
• To learn analytical and graphical methods for calculating balancing of rotary and reciprocating masses
• Understanding of vibrations and its significance on engineering design.

UNIT-1

FRICTION: Inclined plane, friction of screw and nuts, pivot and collar, uniform pressure, uniform wear, friction circle and friction axis: lubricated surfaces, boundary friction, film lubrication.

CLUTCHES: Friction clutches- single disc or plate clutch, multiple disc clutch, cone clutch, centrifugal clutch.

BRAKES AND DYNAMOMETERS: Simple block brakes, internal expanding brake, band brake of vehicle. General description and operation of dynamometers: Prony, Rope brake, Epicyclic, Bevis Gibson and belt transmission,

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UNIT-2

STATIC AND DYNAMIC FORCE ANALYSIS: Dynamic force analysis of four bar mechanism and slider crank mechanism, inertia torque, angular velocity and acceleration of connecting rod, crank effort

TURNING MOMENT DIAGRAMS: Turning moment diagrams – fluctuation of energy – fly wheels and their design.

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UNIT-3

PRECESSION: Gyroscopes, effect of precession motion on the stability of moving vehicles such as motor car, motor cycle, aero planes and ships.

GOVERNERS: Watt, porter and proell governors, spring loaded governors – Hartnell and Hartung with auxiliary springs. sensitiveness, isochronism and hunting.

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UNIT-4

BALANCING: Balancing of rotating masses single and multiple – single and different planes, use analytical and graphical methods. Primary, secondary, and higher balancing of reciprocating masses. analytical and graphical methods, unbalanced forces and couples – examination of “V” multi cylinder in line and radial engines for primary and secondary balancing, locomotive balancing, hammer blow, swaying couple, variation of tractive effort.

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UNIT-5

VIBRATIONS: Free Vibration of spring mass system –Natural frequency-types of damping – damped free vibration, Simple problems on forced damped vibration, vibration isolation and transmissibility transverse loads, vibrations of beams with concentrated and distributed loads. Dunkerly’s methods, Raleigh’s method, whirling of shafts, critical speeds, torsional vibrations, two and three rotor systems.

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TEXT BOOKS:

1. Theory of Machines / S.S Rattan/ Mc. Graw Hill
2. Theory of Mechanisms and Machines -Dr.Jagadish Lal – Metropolitan Pvt.Ltd .

REFERENCE BOOKS:

1. Mechanism and machine theory – JS Rao & RV Dukkipati – New Age Publishers.
2. Theory of Machines – Shigley – McGrawHill Publishers
3. Theory of Machines – Thomas Bevan – Pearson Publishers

OUTCOMES:

• To compute the frictional losses and transmission in clutches, brakes and dynamometers
• To determine the effect of gyroscopic couple in motor vehicles, ships and aeroplanes
• To analyze the forces in four bar and slider crank mechanisms and design a flywheel
• To determine the rotary unbalanced mass in reciprocating equipment
• To determine the unbalanced forces and couples in reciprocating and radial engines
• To determine the natural frequencies of discrete systems undergoing longitudinal, torsional and transverse vibrations.

JNTUK R20 2-2 Material Science & Metallurgy Material PDF Download

Students those who are studying JNTUK R20 Mechanical Branch, Can Download Unit wise R20 2-2 Material Science & Metallurgy Material/Notes PDFs below.

JNTUK R20 2-2 Material Science & Metallurgy Material PDF Download

Course Objectives : To understand the basic fundamentals of Material science and Physical metallurgy. The basic concepts to be taught will help for the improvement, proper selection and effective utilization of materials which is essential to satisfy the ever increasing demands of the society.

UNIT-1

Structure of Metals and Constitution of alloys: Bonds in Solids, Metallic bond, crystallization of metals, Packing Factor – SC, BCC, FCC& HCP-line density, plane density. Grain and grain boundaries, effect of grain boundaries on the Properties of metal / alloys – determination of grain size. Imperfections – point, line, surface and volume- Slip and Twinning. Necessity of alloying, types of solid solutions, Hume Rotherys rules, intermediate alloy phases, and electron compounds

Equilibrium Diagrams : Experimental methods of construction of equilibrium diagrams, Isomorphous alloy systems, equilibrium cooling and heating of alloys, Lever rule, coring miscibility gaps, eutectic systems, congruent melting intermediate phases, peritectic reaction. Transformations in the solid state – allotropy, eutectoid, peritectoid reactions, phase rule, relationship between equilibrium diagrams and properties of alloys. Study of binary phase diagrams such as Cu-Ni and Fe-Fe3C.

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UNIT-2

Ferrous metals and alloys: Structure and properties of White Cast iron, Malleable Cast iron, grey cast iron, Spheriodal graphite cast iron, Alloy cast irons. Classification of steels, structure and properties of plain carbon steels, Low alloy steels, Hadfield manganese steels, tool and die steels.

Non-ferrous Metals and Alloys: Structure and properties of Copper and its alloys, Aluminium and its alloys, Titanium and its alloys, Magnesium and its alloys, Super alloys.

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UNIT-3

Heat treatment of Alloys: Effect of alloying elements on Fe-Fe3C system, Annealing, normalizing, hardening, TTT diagrams, tempering, hardenability, surface – hardening methods, Age hardening treatment, Cryogenic treatment of alloys.

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UNIT-4

Powder Metallurgy: Basic processes- Methods of producing metal powders- milling atomizationGranulation-Reduction-Electrolytic Deposition. Compacting methods – Sintering – Methods of manufacturing sintered parts. Sintering Secondary operations-Sizing, coining, machining -Factors determining the use of powder metallurgy-Application of this process.

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UNIT-5

Ceramic and composite materials: Crystalline ceramics, glasses, cermets, abrasive materials, Classification of composites, various methods of component manufacture of composites, particle – reinforced materials, fiber reinforced materials, metal ceramic mixtures, metal – matrix composites and C – C composites. Nanomaterials – definition, properties and applications.

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TEXT BOOKS:

1. Introduction to Physical Metallurgy – Sidney H. Avener – McGrawHill

2. Essential of Materials science and engineering – Donald R.Askeland – Cengage.

REFERENCES :

1. Material Science and Metallurgy – Dr. V.D.kodgire – Everest Publishing House

2. Materials Science and engineering – Callister & Baalasubrahmanyam- Wiley Publications

3. Material Science for Engineering students – Fischer – Elsevier Publishers

4. Material science and Engineering – V. Rahghavan-PHI Publishers

5. Introduction to Material Science and Engineering – Yip-Wah Chung CRC Press

6. Material Science and Metallurgy – A V K Suryanarayana – B S Publications

7. Material Science and Metallurgy – U. C. Jindal – Pearson Publications

COURSE OUTCOMES: After undergoing the course the student is expected to learn

• CO1: Understand the crystalline structure of different metals and study the stability of phases in different alloy systems.
• CO2: Study the behavior of ferrous and non ferrous metals and alloys and their application in different domains
• CO3: Able to understand the effect of heat treatment, addition of alloying elements on properties of ferrous metals.
• CO4: Grasp the methods of making of metal powders and applications of powder metallurgy
• CO5: Comprehend the properties and applications of ceramic, composites and other advanced methods.

JNTUK R20 2-2 Complex Variables & Statistical Methods Material PDF Download

Students those who are studying JNTUK R20 Mechanical Branch, Can Download Unit wise R20 2-2 Complex Variables & Statistical Methods (CV&SM) Material/Notes PDFs below.

JNTUK R20 2-2 Complex Variables & Statistical Methods Material PDF Download

OBJECTIVES:

• To familiarize the complex variables.
• To familiarize the students with the foundations of probability and statistical methods.
• To equip the students to solve application problems in their disciplines.

UNIT-1

Functions of a complex variable and Complex integration: Introduction – Continuity – Differentiability – Analyticity – Properties – Cauchy-Riemann equations in Cartesian and polar coordinates – Harmonic and conjugate harmonic functions – Milne – Thompson method. Complex integration: Line integral – Cauchy’s integral theorem – Cauchy’s integral formula – Generalized integral formula (all without proofs).

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UNIT-2

Series expansions and Residue Theorem: Radius of convergence – Expansion in Taylor’s series, Maclaurin’s series and Laurent series. Types of Singularities: Isolated – pole of order m – Essential – Residues – Residue theorem ( without proof) – Evaluation of real integral of the type f x dx

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UNIT-3

Probability and Distributions: Review of probability and Baye’s theorem – Random variables – Discrete and Continuous random variables – Distribution function – Mathematical Expectation and Variance – Binomial, Poisson, Uniform and Normal distributions.

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UNIT-4

Sampling Theory: Introduction – Population and samples – Sampling distribution of Means and Variance (definition only) – Central limit theorem (without proof) – Introduction to t, 2  and F-distributions – Point and Interval estimations – Maximum error of estimate.

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UNIT-5

Tests of Hypothesis: Introduction – Hypothesis – Null and Alternative Hypothesis – Type I and Type II errors – Level of significance – One tail and two-tail tests – Tests concerning one mean and two means (Large and Small samples) – Tests on proportions.

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TEXT BOOKS:

1. B. S. Grewal, Higher Engineering Mathematics, 43rd Edition, Khanna Publishers.
2. Miller and Freund’s, Probability and Statistics for Engineers, 7/e, Pearson, 2008.

REFERENCE BOOKS:

1. S. C. Gupta and V. K. Kapoor, Fundamentals of Mathematical Statistics, 11/e, Sultan Chand & Sons Publications, 2012.
2. Jay l. Devore, Probability and Statistics for Engineering and the Sciences, 8th Edition, Cengage.
3. Shron L. Myers, Keying Ye, Ronald E Walpole, Probability and Statistics Engineers and the Scientists, 8th Edition, Pearson 2007.
4. Sheldon, M. Ross, Introduction to probability and statistics Engineers and the Scientists, 4th Edition, Academic Foundation, 2011

OUTCOMES:

• apply Cauchy-Riemann equations to complex functions in order to determine whether a given continuous function is analytic (L3)
• find the differentiation and integration of complex functions used in engineering problems (L5)
• make use of the Cauchy residue theorem to evaluate certain integrals (L3)
• apply discrete and continuous probability distributions (L3)
• design the components of a classical hypothesis test (L6)
• infer the statistical inferential methods based on small and large sampling tests (L4)